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(Nomaden.) Y .Y L. W. YUNG 8u H. E. PAR-SON.

ORE GONGBNTRATOR.

Y kPatelilted Apr. 14, 1891.

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UNITED STATES LOUIS IV. YOUNG, OF NEW YORK, AND HENRY E. PARSON, OF BROOKLYN, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE AMERICAN ORE MA- CHINERY COMPANY, OF NET YORK, N. Y.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 450,280, dated April 14, 1891. Application tiled February l1, 1890. Serial No. 340,047. (No model.)

To @ZZ whom, t may concern/.-

Be it known that we, LOUIS XV. YOUNG, of New York, county of New York, and State of New York, and HENRY E. PARSON, of Brooklyn, county of Kings, and State of New York, have invented a new and useful Improvement in Ore-Concentrators, of which the following is a specification.

We will describe aconcentrator embodying our improvement, and then point out the novel features in the claims.

.In the drawings, Figure l is a perspective view of a conceutrator embodying our improvement, and Fig. 2 is a transverse section of a dam employed.

Similar letters of reference designate corresponding parts in bot-h figures.

This apparatus is employed in separating the valuable from the worthless products of ores, the construction and action being such that the tailings or valueless portions are carried or precipitated over t-he tail of the table and the valuable portions are collected or concentrated at the head of the table and finally forced over the head of the ltable into an appropriate receptacle.

Referring by letter to the drawings, B designates rigidly-fixed beams or girders, and B designates transverse bars secured to the girders B. The girders B and bars B constitute a rigid frame from which the apparatus is suspended.

T represents a table upon which the ore is deposited for separation. The table T we preferably construct of steel, of any desired length and width, and the sides are turned upward, as at t2, so that material acted upon can only escape at the ends of the table.

The table T is suspended from the'girders B by means of rods R R', which are preferably of resilient or spring metal-such, forinstance, as steel. The upper ends of the rods R are rigidly connected to a girder' B. IVe have here shown the upper ends ofthe rods as passing through openingsin the girder and provided with nuts n. The lower end of each rod R is connected to the table T near its forward end by a loose coupling, here shown as a ring e passing through an opening a in the upturned sides t2. It is evident that these connections may be made in other ways without departing from the spirit of our invention. The rods R may be also of'resilient or spring metal, and they are connected to the table near its tail end in a manner similar to the rods R. In operation the table T must have a downward inclination from the tail to the front end. Therefore in order to vary or adjust the inclination the rods R are adjustable. As a means of securing this adjustnient, the upper ends of the rods R are passed through openings in a girder B, and also through openings in a cross-head I), and the threaded ends are provided with nuts n2. A screw S passes through an opening in the girder B and engages with atapped block or nut n', secured to the girder. of the screw impinges against the cross-head P, and the lower end is provided with a handwheel IV. It will be seen that an upward or downward movement of the screw will move the rods R simultaneously, and will -cause a corresponding adjustment of the inclination of the table.

Having described a means for suspending the table and imparting to it a motion in one direction, we will now describe a means for imparting to it a motion in the reverse direction.

D designates a shaft rotating in bearings d and driven by any desired power. We have here shown a band-wheel w affixed to the shaft and a band leading to a power.

C shows a double cam removably xed to the shaftD by means of an ordinary set-screw (not shown) provided with oppositely-curved surfaces c. Only one cam O is shown in the drawings; but it is to be understood that two or more of them are to be employed. At each half-revolution of the shaft D the cams C strike against the front face of a tappet-bar s, rigidly secured to the bottom of the table, and impart a rearward motion to the table.

F designates a rigid standard, upon which is supported a head-block f, which is adjustable for the purpose of varying the degree of shock when the table T strikes against it. The head-block f is adjustable in a slideway f', and is adjusted by means of a screw f3, which engages with the head-block and passes The upper endv IOO through a tapped opening or nuton a bracket extended from the standard l. ,l cushion f2, of rubber or like material, may .be secured to the blockf to soften the blow.

G designates a dam extending across the table near its forward end. `l`he dam consists of the top plate y, having downfamily-cv tending diverging sides 1,1, and extensioni plates g2 are adjustably secured to the sides g by means ot bolts ,fi passing through peri forations in the sides y] and slots in the exten- S sion-plates. The dam may be adjusted vertically by means of screws t passing through blocks i), secured to the sides of the table and having a threaded engagement with the plate i g of the dam. The screws t" may have a swivel engagement with the dam and a thread engagement with the blocks, if so desired. The effect would be the same in either event. Obviouslywhen the upper portion ot' the dam is raised the plates pi will still remain in coni tact with the table.

ll is a hopper suspended above and transverse to the length ot" the table T. lt is here shown as suspended from .the bars i3 by means of resilient rods R2. "'lhe hopper il has downwardly-eonverging sides and has a narrow opening lengthwisein its bottom, and the front t side has a series ot' periorations li near the i bottom. A bottom board h is adjustably con nected to the hopper by means ot thumoscrews t passing through tapped holes in arms t t2 and having a loose connection with the bott tom Z2. By making this bottom b adjustable l We are enabled to entirely close the narrow l opening in the bottom of the hopper, or to l adjust the bottom h away from the hopper, t so that the ore may pass through the narrow 1 opening as well as through the pertorations afl The hopper H is intended to have a longil tudinal vibratory motion imparted to it, and l for this purpose a pitman c has one end piv- ,i oted to the bottom board h, and the other end is pivoted to a wristfpin adjustable in a slot in the crank d. "`l`he crank d" is secured to a vertical shaft D, which may be rotated i by a bevel-gear connection lhot shown) with g the shaft D or otherwise. ly making the wrist-pin adjustable on the crank d a long or short vibration may be imparted to the hopper by merely changing the wrist-pin with l relation to the axis ot' the crank.

P2 is a Water-pipe extended above the table T forward of the hopper. lVater is admitted to this pipe from any desired source, and is ejected through perforations or nipples it. which are provided with controlling-cocks c'".

The operation ot' this device is very simple and may be stated as follows: "lhe crushed j ore, either in a dry or wet state, is placed in i the hopper' and water is allowed to l'loW through the nipples it onto the table. `l"lie vibratory motion of the hopper forces the i, particles of ore through the perforations a. andthe mixture ot1 water and ore is thoroughly agitated by the reciprocation of the table l. The percussion of the table against the bloeit i y" forces the lighter and worthless portions of the ore with an amount ot water overthe tail oi" the table, and the heavy or valuable part ut" the ore is damnied up against the dam G, and eveni ually forced over the dam by percussion into a receptacle provided to rereive it.

ls bet'ore stated, the force ot' the percussion may be varied by moving the head-bloclj'to or trom the end,` ot' the table, and it is evident that the several adjustments ot the machine may be made while the coneentrator is in full operation.

`l`he object of adjusting or varying the iuclination of the table is to adapt the machine to different grades ot' ore.

Having described our invention` what We claim is- I.. The combination, with an adjustable suspended table, ot' mechanism, substantially such as described, t'or moving the table in one direction, mechanism, substantially suoli as described, t'or moving the table in the reverse direction, and an adjustable dam on said table, consisting ol the top plate having downwardly-cxtending sides and extension-plates on said sides, substantially as specilied.

ln a eoncentrator, the combination, with a reciprocating table having a dam, ot" a head bloei; to receive and vary the shock et" said table, the said head-block consisting ot a j block adjustable in slideways on a standard,

and a screw engaging with the bloei; to vary the adjustment, substantially as specihed.

`l. "lhe combination, with a suspended reciprocating table, of a suspended vibratory hopper having a discharge opening or openings above the table7 means tor changing the length of movement of the hopper, and meehanism, substahtiallysuch as described, t'or vibrating the hopper transversely to themovement ot the table, substantially as speeitied.

"l`he combination, with a reciprocating suspended table, ot' a vibratory hopper above and transverse to the table, a water-supply above the table, and mechanism, substantially such as described, for imparting motion to the table and hopper, the one transverse to the other, substantiallyas specilied.

l. ln a concentrator, the combination, with a table, ot" a rigid frame, resilient rods rigidly connected at one end to the frame and at the other end to the table, other rods connected at one end to the table and the other end extended through openings in the trame, a

, said rods, and a screw having a hand-Wheel f and im pinging against the cross-head, whereby the rods may be simultaneously adjusted to vary the inclination of the table, substan tially as specilied.

LOUIS W. YOUNG. HENRY l. PARSQ.

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